Des Preston
USATT#: 73084
2209 2147
Boston TTC
19 Jun 2018
19 Jun 2018
This page explains how Des Preston (USATT# 73084)'s rating went from 2209 to 2147 at the Boston TTC event from 19 Jun 2018. The links below take you to pages that describe various aspects of the rating processor.
Introduction
Initial Rating
The rating processor goes through 4 passes in order. The links take you to pages that provide detailed explanations of the calculations during each of the 4 passes.